15860915

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 25712640

約数和(自身を除く): 9851725

約数列:

[1, 5, 7, 17, 19, 23, 35, 61, 85, 95, 115, 119, 133, 161, 305, 323, 391, 427, 437, 595, 665, 805, 1037, 1159, 1403, 1615, 1955, 2135, 2185, 2261, 2737, 3059, 5185, 5795, 7015, 7259, 7429, 8113, 9821, 11305, 13685, 15295, 19703, 23851, 26657, 36295, 37145, 40565, 49105, 52003, 98515, 119255, 133285, 137921, 166957, 186599, 260015, 453169, 689605, 834785, 932995, 2265845, 3172183, 15860915]

約数ペア:

[(1, 15860915), (5, 3172183), (7, 2265845), (17, 932995), (19, 834785), (23, 689605), (35, 453169), (61, 260015), (85, 186599), (95, 166957), (115, 137921), (119, 133285), (133, 119255), (161, 98515), (305, 52003), (323, 49105), (391, 40565), (427, 37145), (437, 36295), (595, 26657), (665, 23851), (805, 19703), (1037, 15295), (1159, 13685), (1403, 11305), (1615, 9821), (1955, 8113), (2135, 7429), (2185, 7259), (2261, 7015), (2737, 5795), (3059, 5185)]